git://bbs.cooldavid.org / net-next-2.6.git / blame
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1 | Currently, kvm module is in EXPERIMENTAL stage on IA64. This means that |
| 2 | interfaces are not stable enough to use. So, please don't run critical | |
| 3 | applications in virtual machine. | |
| 4 | We will try our best to improve it in future versions! | |
| 5 | ||
| fdae862f XZ |
6 | Guide: How to boot up guests on kvm/ia64 |
| 7 | ||
| 8 | This guide is to describe how to enable kvm support for IA-64 systems. | |
| 9 | ||
| 10 | 1. Get the kvm source from git.kernel.org. | |
| 11 | Userspace source: | |
| 12 | git clone git://git.kernel.org/pub/scm/virt/kvm/kvm-userspace.git | |
| 13 | Kernel Source: | |
| 14 | git clone git://git.kernel.org/pub/scm/linux/kernel/git/xiantao/kvm-ia64.git | |
| 15 | ||
| 16 | 2. Compile the source code. | |
| 17 | 2.1 Compile userspace code: | |
| 18 | (1)cd ./kvm-userspace | |
| 19 | (2)./configure | |
| 20 | (3)cd kernel | |
| 21 | (4)make sync LINUX= $kernel_dir (kernel_dir is the directory of kernel source.) | |
| 22 | (5)cd .. | |
| 23 | (6)make qemu | |
| 24 | (7)cd qemu; make install | |
| 25 | ||
| 26 | 2.2 Compile kernel source code: | |
| 27 | (1) cd ./$kernel_dir | |
| 28 | (2) Make menuconfig | |
| 29 | (3) Enter into virtualization option, and choose kvm. | |
| 30 | (4) make | |
| 31 | (5) Once (4) done, make modules_install | |
| 32 | (6) Make initrd, and use new kernel to reboot up host machine. | |
| 33 | (7) Once (6) done, cd $kernel_dir/arch/ia64/kvm | |
| 34 | (8) insmod kvm.ko; insmod kvm-intel.ko | |
| 35 | ||
| 36 | Note: For step 2, please make sure that host page size == TARGET_PAGE_SIZE of qemu, otherwise, may fail. | |
| 37 | ||
| 38 | 3. Get Guest Firmware named as Flash.fd, and put it under right place: | |
| 39 | (1) If you have the guest firmware (binary) released by Intel Corp for Xen, use it directly. | |
| 40 | ||
| 41 | (2) If you have no firmware at hand, Please download its source from | |
| 42 | hg clone http://xenbits.xensource.com/ext/efi-vfirmware.hg | |
| 43 | you can get the firmware's binary in the directory of efi-vfirmware.hg/binaries. | |
| 44 | ||
| 877d0310 | 45 | (3) Rename the firmware you owned to Flash.fd, and copy it to /usr/local/share/qemu |
| fdae862f XZ |
46 | |
| 47 | 4. Boot up Linux or Windows guests: | |
| 48 | 4.1 Create or install a image for guest boot. If you have xen experience, it should be easy. | |
| 49 | ||
| 50 | 4.2 Boot up guests use the following command. | |
| 51 | /usr/local/bin/qemu-system-ia64 -smp xx -m 512 -hda $your_image | |
| 52 | (xx is the number of virtual processors for the guest, now the maximum value is 4) | |
| 53 | ||
| d9195881 | 54 | 5. Known possible issue on some platforms with old Firmware. |
| fdae862f | 55 | |
| d9195881 | 56 | In the event of strange host crash issues, try to solve it through either of the following ways: |
| fdae862f XZ |
57 | |
| 58 | (1): Upgrade your Firmware to the latest one. | |
| 59 | ||
| 60 | (2): Applying the below patch to kernel source. | |
| 61 | diff --git a/arch/ia64/kernel/pal.S b/arch/ia64/kernel/pal.S | |
| 62 | index 0b53344..f02b0f7 100644 | |
| 63 | --- a/arch/ia64/kernel/pal.S | |
| 64 | +++ b/arch/ia64/kernel/pal.S | |
| 65 | @@ -84,7 +84,8 @@ GLOBAL_ENTRY(ia64_pal_call_static) | |
| 66 | mov ar.pfs = loc1 | |
| 67 | mov rp = loc0 | |
| 68 | ;; | |
| d9195881 ML |
69 | - srlz.d // serialize restoration of psr.l |
| 70 | + srlz.i // serialize restoration of psr.l | |
| fdae862f XZ |
71 | + ;; |
| 72 | br.ret.sptk.many b0 | |
| 73 | END(ia64_pal_call_static) | |
| 74 | ||
| 75 | 6. Bug report: | |
| 76 | If you found any issues when use kvm/ia64, Please post the bug info to kvm-ia64-devel mailing list. | |
| 77 | https://lists.sourceforge.net/lists/listinfo/kvm-ia64-devel/ | |
| 78 | ||
| 79 | Thanks for your interest! Let's work together, and make kvm/ia64 stronger and stronger! | |
| 80 | ||
| 81 | ||
| 82 | Xiantao Zhang <xiantao.zhang@intel.com> | |
| 83 | 2008.3.10 |